You are equivocating additional weak points and additional verifiers when you are using the word "trust" for both. Having an additional entity the failure of w

You are equivocating additional weak points and additional verifiers when you are using the word "trust" for both. Having an additional entity the failure of which would lead to a failure of the system/product is an additional weak point. Obviously, you want as few of those as possible that you have to trust. Having an additional entity that watches/checks what is going on is an additional verifier. Obviously, you want as many of those as possible that you can build your trust on. You argument is essentially that you want fewer verifiers in order to have fewer weak points. That's just nonsense. By the same logic, you should prefer an intransparent dictatorship to a transparent democracy, because there are "fewer poeple to trust".